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    Economic feasibility of a solar still desalination system with enhanced productivity

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    Type
    Article
    Authors
    Ayoub, George M.
    Malaeb, Lilian
    KAUST Department
    Biological and Environmental Sciences and Engineering (BESE) Division
    Water Desalination and Reuse Research Center (WDRC)
    Date
    2014-02
    Permanent link to this record
    http://hdl.handle.net/10754/563370
    
    Metadata
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    Abstract
    Solar still desalination systems offer sustainable tools for fresh water production. However, their widespread application is often hindered by their relatively low production rates compared to other desalination methods. In this study, a simple amendment, in the form of a slowly-rotating hollow cylinder, was introduced within the solar still, significantly increasing the evaporative surface area. This new modified still was analyzed in terms of both operation and economic feasibility. The introduced cylinder resulted in a 200-300% increase in water output relative to a control, which did not include the cylinder. The resulting percent improvement far exceeds that obtained by other modifications. Unit production cost estimates varied between 6 and 60$\$$/m3 depending on discount rates, productivity, service lifetime and initial capital costs. These projections are well within reported cost ranges for renewable-based technologies. In order to evaluate the system's feasibility in real market value, different scenarios that introduce carbon-trading schemes and environmental degradation costs for fuel-based desalination, were performed. Reported costs for fuel-based brackish water and seawater desalination were thus adjusted to include unaccounted-for costs related to environmental damage. This analysis yielded results that further justify the economic feasibility of the new modified solar still, particularly for seawater desalination. © 2013 Elsevier B.V.
    Citation
    Ayoub, G. M., & Malaeb, L. (2014). Economic feasibility of a solar still desalination system with enhanced productivity. Desalination, 335(1), 27–32. doi:10.1016/j.desal.2013.12.010
    Sponsors
    The authors would like to acknowledge the Lebanese National Council for Scientific Research and the Middle East Desalination Research Center, Oman for financially supporting this work.
    Publisher
    Elsevier BV
    Journal
    Desalination
    DOI
    10.1016/j.desal.2013.12.010
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.desal.2013.12.010
    Scopus Count
    Collections
    Articles; Biological and Environmental Science and Engineering (BESE) Division; Water Desalination and Reuse Research Center (WDRC)

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